refactor: remove pulsing dot

src/fellchensammlung/templates/fellchensammlung/partials/partial-map.html

@@ -102,104 +102,6 @@
         });
     });
 
-    const size = 200;
-
-    // implementation of StyleImageInterface to draw a pulsing dot icon on the map
-    // Search for StyleImageInterface in https://maplibre.org/maplibre-gl-js/docs/API/
-    const pulsingDot = {
-        width: size,
-        height: size,
-        data: new Uint8Array(size * size * 4),
-
-        // get rendering context for the map canvas when layer is added to the map
-        onAdd() {
-            const canvas = document.createElement('canvas');
-            canvas.width = this.width;
-            canvas.height = this.height;
-            this.context = canvas.getContext('2d');
-        },
-
-        // called once before every frame where the icon will be used
-        render() {
-            const duration = 1000;
-            const t = (performance.now() % duration) / duration;
-
-            const radius = (size / 2) * 0.3;
-            const outerRadius = (size / 2) * 0.7 * t + radius;
-            const context = this.context;
-
-            // draw outer circle
-            context.clearRect(0, 0, this.width, this.height);
-            context.beginPath();
-            context.arc(
-                this.width / 2,
-                this.height / 2,
-                outerRadius,
-                0,
-                Math.PI * 2
-            );
-            context.fillStyle = `rgba(255, 200, 200,${1 - t})`;
-            context.fill();
-
-            // draw inner circle
-            context.beginPath();
-            context.arc(
-                this.width / 2,
-                this.height / 2,
-                radius,
-                0,
-                Math.PI * 2
-            );
-            context.fillStyle = 'rgba(255, 100, 100, 1)';
-            context.strokeStyle = 'white';
-            context.lineWidth = 2 + 4 * (1 - t);
-            context.fill();
-            context.stroke();
-
-            // update this image's data with data from the canvas
-            this.data = context.getImageData(
-                0,
-                0,
-                this.width,
-                this.height
-            ).data;
-
-            // continuously repaint the map, resulting in the smooth animation of the dot
-            map.triggerRepaint();
-
-            // return `true` to let the map know that the image was updated
-            return true;
-        }
-    };
-
-    map.on('load', () => {
-        map.addImage('pulsing-dot', pulsingDot, {pixelRatio: 2});
-
-        map.addSource('points', {
-            'type': 'geojson',
-            'data': {
-                'type': 'FeatureCollection',
-                'features': [
-                    {
-                        'type': 'Feature',
-                        'geometry': {
-                            'type': 'Point',
-                            'coordinates': [0, 0]
-                        }
-                    }
-                ]
-            }
-        });
-        map.addLayer({
-            'id': 'points',
-            'type': 'symbol',
-            'source': 'points',
-            'layout': {
-                'icon-image': 'pulsing-dot'
-            }
-        });
-    });
-
     {% if search_radius  %}
         map.on('load', () => {
             const radius = {{ search_radius }}; // kilometer